Who was a major force in the revival of the classical style in early medieval times?

This would be humanism this was one of the main ideas of the medieval times. They were studying Greek knowledge and life as well as rebirthing classic times. 

Because it is an outlet. most people are very shut off so they will write poetry to.. almost rant. sometimes people can’t say their feelings out loud so they make it into an art form that is poetry, and write it down.